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Forum: Main CFD Forum

June 8, 2009, 03:55

Replies: 23

High Re Flow over Cylinder

Views: 5,740

Posted By andy_

If you have a constant mass flow...

If you have a constant mass flow (rho*velocity*area) and you reduce the area with a blockage (i.e. your cylinder) then the velocity has to increase. You symmetry condition (and the walls of wind...

Forum: Main CFD Forum

June 8, 2009, 02:48

Replies: 23

High Re Flow over Cylinder

Views: 5,740

Posted By andy_

Assuming you are simulating an incompressible...

Assuming you are simulating an incompressible fluid, whatever mass flow you specify at the inlet will be constant on every transverse plane until you reach the exit. Your cylinder blocks the flow...

Forum: Main CFD Forum

June 6, 2009, 02:06

Replies: 23

High Re Flow over Cylinder

Views: 5,740

Posted By andy_

You have a cylinder of diameter 14 in a solution...

You have a cylinder of diameter 14 in a solution domain of size of 28 with symmetry BC on the top and bottom? If so, this will be significantly different to the flow over a cylinder in free space...

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